EXECELENT drink for the summer.
@ Anne, if you can't find the cake vodka (I've never seen it before either), use a 1 oz. shot of each Buttershot Schnapps, Peach Schnapps, Almeretto, and 3 ozs. pineapple juice. Use a drop or 2 of the cherry juice for the grenadine. This is the way I make it and it taste just like a liquid PUSDC

Reviewer:

Just when I thought it couldn't get any better, it did! I used Three Olives cake flavored vodka and it's so sweet you can drink it straight! If you can't find it, the older version of this recipe calls for "vanilla" flavored vodka. It's also very good.

Reviewer:

I made this recipe a couple weeks back when I saw it on Pinterest. It really does taste like a pineapple upside down cake! This also works with Whipped Vodka as well. NOTE: If you haven't had a chance to try cake vodka yet, DO. I was skeptical until I tried it. Now I'm hooked.